convoluted

Having numerous overlapping coils or folds; convolute.

[B]y the means of theſe hooks, and Spikes it [a tapeworm in the intestines] might faſten it ſelf, and ſo prevent it's too eaſy ejection out of the body. For it being ſo very long, and large too, and it's body in many places winding, and convoluted, the deſcent of the fæces upon all occaſions would be apt to carry it out with them; had it not this hold, [...]

The figure [of the constellation Anguilla] is that of the common eel in that convoluted ſtate in which it is uſually ſeen when in motion.

Complex, complicated, or intricate.

He gave a convoluted explanation that amounted to little more than a weak excuse for his absence.

There is a convoluted cypher which designates the name and titles of the Sultan, contained in a single complicated figure, which is seen on the coins of the empire, and on all public edifices.